/usr/include/cegui-0.8.4/CEGUI/RendererModules/Irrlicht/RenderTarget.inl is in libcegui-mk2-dev 0.8.4+dfsg-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 | /***********************************************************************
created: Tue Mar 3 2009
author: Paul D Turner (parts based on original code by Thomas Suter)
*************************************************************************/
/***************************************************************************
* Copyright (C) 2004 - 2011 Paul D Turner & The CEGUI Development Team
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
***************************************************************************/
#include "CEGUI/RendererModules/Irrlicht/RenderTarget.h"
#include "CEGUI/GeometryBuffer.h"
#include "CEGUI/RenderQueue.h"
#include "CEGUI/RendererModules/Irrlicht/GeometryBuffer.h"
// Start of CEGUI namespace section
namespace CEGUI
{
//----------------------------------------------------------------------------//
template <typename T>
IrrlichtRenderTarget<T>::IrrlichtRenderTarget(IrrlichtRenderer& owner,
irr::video::IVideoDriver& driver) :
d_owner(owner),
d_driver(driver),
d_area(0, 0, 0, 0),
d_viewDistance(0),
d_matrixValid(false),
#if IRRLICHT_VERSION_MAJOR > 1 || (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8)
d_xViewDir(1.0f)
#else
d_xViewDir(driver.getDriverType() != irr::video::EDT_OPENGL ? 1.0f : -1.0f)
#endif
{
}
//----------------------------------------------------------------------------//
template <typename T>
IrrlichtRenderTarget<T>::~IrrlichtRenderTarget()
{
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::draw(const GeometryBuffer& buffer)
{
buffer.draw();
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::draw(const RenderQueue& queue)
{
queue.draw();
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::setArea(const Rectf& area)
{
d_area = area;
d_matrixValid = false;
RenderTargetEventArgs args(this);
T::fireEvent(RenderTarget::EventAreaChanged, args);
}
//----------------------------------------------------------------------------//
template <typename T>
const Rectf& IrrlichtRenderTarget<T>::getArea() const
{
return d_area;
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::activate()
{
irr::core::rect<irr::s32> vp(static_cast<irr::s32>(d_area.left()),
static_cast<irr::s32>(d_area.top()),
static_cast<irr::s32>(d_area.right()),
static_cast<irr::s32>(d_area.bottom()));
d_driver.setViewPort(vp);
if (!d_matrixValid)
updateMatrix();
d_driver.setTransform(irr::video::ETS_PROJECTION, d_matrix);
d_driver.setTransform(irr::video::ETS_VIEW, irr::core::matrix4());
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::deactivate()
{
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::unprojectPoint(const GeometryBuffer& buff,
const Vector2f& p_in,
Vector2f& p_out) const
{
if (!d_matrixValid)
updateMatrix();
const IrrlichtGeometryBuffer& gb =
static_cast<const IrrlichtGeometryBuffer&>(buff);
const irr::f32 midx = d_area.getWidth() * 0.5f;
const irr::f32 midy = d_area.getHeight() * 0.5f;
// viewport matrix
const irr::f32 vpmat_[] =
{
midx, 0, 0, 0,
0, -midy, 0, 0,
0, 0, 1, 0,
d_area.left() + midx, d_area.top() + midy, 0, 1
};
irr::core::matrix4 vpmat;
vpmat.setM(vpmat_);
// matrices used for projecting and unprojecting points
const irr::core::matrix4 proj(gb.getMatrix() * d_matrix * vpmat);
irr::core::matrix4 unproj(proj);
unproj.makeInverse();
irr::core::vector3df in;
// unproject the ends of the ray
in.X = midx;
in.Y = midy;
in.Z = -d_viewDistance;
irr::core::vector3df r1;
unproj.transformVect(r1, in);
in.X = p_in.d_x;
in.Y = p_in.d_y;
in.Z = 0;
irr::core::vector3df r2;
unproj.transformVect(r2, in);
// calculate vector of picking ray
const irr::core::vector3df rv(r1 - r2);
// project points to orientate them with GeometryBuffer plane
in.X = 0.0;
in.Y = 0.0;
irr::core::vector3df p1;
proj.transformVect(p1, in);
in.X = 1.0;
in.Y = 0.0;
irr::core::vector3df p2;
proj.transformVect(p2, in);
in.X = 0.0;
in.Y = 1.0;
irr::core::vector3df p3;
proj.transformVect(p3, in);
// calculate the plane normal
const irr::core::vector3df pn((p2 - p1).crossProduct(p3 - p1));
// calculate distance from origin
const irr::f32 plen = pn.getLength();
const irr::f32 dist = -(p1.X * (pn.X / plen) +
p1.Y * (pn.Y / plen) +
p1.Z * (pn.Z / plen));
// calculate intersection of ray and plane
const irr::f32 pn_dot_rv = pn.dotProduct(rv);
const irr::f32 tmp = pn_dot_rv != 0.0 ?
(pn.dotProduct(r1) + dist) / pn_dot_rv :
0.0f;
p_out.d_x = static_cast<float>(r1.X - rv.X * tmp) * d_viewDistance;
p_out.d_y = static_cast<float>(r1.Y - rv.Y * tmp) * d_viewDistance;
}
//----------------------------------------------------------------------------//
template <typename T>
void IrrlichtRenderTarget<T>::updateMatrix() const
{
const float w = d_area.getWidth();
const float h = d_area.getHeight();
const float aspect = w / h;
const float midx = w * 0.5f;
const float midy = h * 0.5f;
d_viewDistance = midx / (aspect * 0.267949192431123f);
d_matrix.buildProjectionMatrixPerspectiveFovRH(0.523598776f, aspect,
d_viewDistance * 0.5f,
d_viewDistance * 2.0f);
irr::core::matrix4 tmp;
tmp.buildCameraLookAtMatrixRH(
irr::core::vector3df(d_xViewDir * midx, midy, -d_viewDistance),
irr::core::vector3df(d_xViewDir * midx, midy, 1),
irr::core::vector3df(0, -1, 0));
d_matrix *= tmp;
d_matrixValid = true;
}
//----------------------------------------------------------------------------//
} // End of CEGUI namespace section
|